The strikes come after sources told The Jerusalem Post on Sunday that Israeli officials were still deciding when and how hard to hit Iran.

Iranian state TV reported explosions in Tehran, Tabriz and Isfahan.

On Sunday, Israel launched airstrikes in Beirut's southern suburbs. Iran retaliated with its own strike on Israel, which led to Monday morning's attack by Israel on Iran.

Israel Defense Forces said Sunday night its air force “struck military targets belonging to the Iranian terror regime in western and central Iran."